I use this code to process a date string coming in from a json feed: NSDateFormatter * formatter = [[NSDateFormatter alloc] init]; [formatter setDateStyle: NSDateFormatterLongStyle]; [formatter setFormatterBehavior: NSDateFormatterBehavior10_4]; [formatter setDateFormat: @"EEE, dd MMM yyyy HH:mm:ss +0000"]; so if I call NSDate *date ...
I could use a clean, working, base64 implementation for the purpose of authorization over HTTP for a REST protocol. Can anybody help me out or point me in a direction? Thanks. ...
Is there a way to compare two Objective-C objects based purely on the protocol they implement. Specifically I'm looking at comparing two objects conforming to MKAnnotation (iPhone mapkit annotations). Given two objects that conform to the protocol, I would like to determine if they are equal as far as the protocol is concerned. In this ...
Hi, I have a view with a back button managed with a navigation controller and I want to check if a file has been saved when the user click on the back button. If the file has been saved you go back in the previous view, else a uialertview ask you if you want to save the file or not. So I did that but the view disapear and the alertview...
NSArray *splitPoints = [routeGeom componentsSeparatedByString:@"], ["]; routePoints = malloc(sizeof(CLLocationCoordinate2D) * ([splitPoints count] + 1)); int i=0; NSArray *coords; for (NSString* coordStr in splitPoints) { coords = [coordStr componentsSeparatedByString:@","]; routePoints[i].latitude = [[[coords objectAtIndex:0] su...
What's the proper way to tell if an object is allocated in Objective-C? I've seen in sample code (and this seems to work only if it's never been allocated): if(!Object) { ... } I've also tried setting Object = nil, but that's a tedious process each time, gets a little bit annoying. But if I have an object, and I want to allocate ...
Thanks to the respondents on this question (http://stackoverflow.com/questions/1396949/this-loop-is-very-slow-i-think-because-i-create-a-lot-of-intermediate-strings-h) I was able to speed up my code many orders of magnitude. I think I can probably do a bit better though. Is it possible to avoid the creation of a bunch of NSString's here...
I have setup a connection to a server and now I want to transfer images to the iPhone. What's the best way to do this? I checked here and I don't see a way to transfer anything other than xml. I need images. Thank You! ...
I have a custom NSCell with various elements inside of it (images, various text pieces) and one of those text blocks may have various clickable links inside of it. I have my NSAttributedString correctly identifying the links and coloring them blue however I can't figure out how to get the cursor to turn into a hand and allow a user to ac...
//obj C version, with some - less than one second on 18,000 iterations for (NSString* coordStr in splitPoints) { char *buf = [coordStr UTF8String]; sscanf(buf, "%f,%f,", &routePoints[i].latitude, &routePoints[i].longitude); i++; } //C version - over 13 seconds on 18,000 iterations for (i = 0; buf != NULL; buf = strchr(buf,'[...
I have three button named(titled) hello, nothing, heaven and one label (IBOutlet UIlabel lab). I want to display three diff messages for three diff button click. But the following code failed to accomplish this. Can anyone suggest any idea? -(IBAction)buttonclick:(id)sender { NSString *title=[sender titleForState:UIControlState...
Hi guys, I have a variable declared like this in a class: Entity *array[BOARD_SIZE][BOARD_SIZE]; I need to set up either a @property that allows me to access (read) the array elements, or a function that returns a reference so I can access the array elements. - ( ??? ) getEntityArray { return ???; } or @property (????) Entity ...
SendDelegateMessage: delegate failed to return after waiting 10 seconds. main run loop mode: kCFRunLoopDefaultMode If you were not using the touch screen for this entire interval (which can prolong this wait), please file a bug. - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath { /* ...
What is the difference in accessing an objects properties or methods via foo.property to [foo property]? ...
Hi all, In the calender app in the iphone, when you click in the starts/end cell, the picker is already fill with data with no delay? How? ...
I am trying to count the total songs from the ipod library. Due to grouping any songs with same title will not be added to the array. MPMediaQuery *songsQuery = [[MPMediaQuery alloc] init]; NSArray *mySongs = [songsQuery collections]; NSLog(@"%d", [mySongs count]); Is there an alternative/better way? Any ideas welcome. ...
Hi, I am trying to make an application on mac.i am trying to develop a user authentication module that uses the OS authorization dialog and use its functionality in my application. i have two questions regarding the mac development; 1) Is there a possibility to port the carbon applications to cocoa? (i don't have any concern with ...
I need to add a few methods to an already identified class in a closed source application. Using f-script anwywhere and gdb I know what I need to interact with to acheive my goals. However I am struggling to find a solution to allow me to inject some code (preferably objective-c) into the running application. For the time being I wo...
In the dealloc method for a class how would I print out the ID (or some other unique identifier) for the instance being deallocated? - (void)dealloc { NSLog(@"_deallocing: ??"); [super dealloc]; } Is this possible? I am just trying to get a little more feedback in the console as an aid to learning. many thanks -gary- ...
The default description for a class instance returns "ClassName: 0x105120". How might I modify the method below to just return the "ClassName"? // The code below just returns the address ... - (NSString *)description { NSString *result; result = [NSString stringWithFormat:@"%p", self]; return result; } EDIT: in that case woul...